@book{Institute for Social and Economic Research2021,
author = {Institute for Social and Economic Research},
title= {Understanding Society COVID-19 User Guide. Version 7.0.},
year = {2021},
URL = {https://www.understandingsociety.ac.uk/sites/default/files/downloads/documentation/covid-19/user-guides/covid-19-user-guide.pdf},
address = {Colchester},
publisher = {University of Essex},
}